Priority of operations with positive integers

12 questions

1. Complete the statement. The additive inverse of a number is a number that, __________
2. Match each number with its additive inverse.
3. Select all the fractions that are equivalent to {2} \over {3}.
4. Match each calculation with an equivalent commutative calculation.
5. Work out the missing number: 9.8 \times 0.5 + 9.8 \times ___ = 9.8
6. Work out the missing number: 34 \times 0.8 + 34 \times ___ = 68
7. This image is a help guide to the priority of operations. Which set of operations must you always apply first when they are in a calculation?
8. How would you complete a calculation when an operation is repeated?
9. Without using a calculator, work out: 4\times5 + 6\times7 = ___
10. Without using a calculator, work out: 200\;-(12\;–\;8)\times5\times3^2 = ___
11. The answer to this calculation is 54. Match the triangle, star, square and arrow to the correct operation or numerical value.
12. Without using a calculator, work out: 90 + \sqrt{40\times10}-12\times5 = ___

License: OGL